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What is a proxy? When to use a proxyIP？ Proxy server (Proxy ServerIts function is to obtain network information on behalf of the user and then return it to the user. Figuratively, it is a transit station for network information. Through proxiesIPAccess the destination station, which can hide the user's realityIP。 For example, if you want to scrape a website data, the website has100Ten thousand contents, they didIPlimit, eachIPOnly catch every hour1000bar, if singleIPTo catch because of limitations, need40It takes about a day to collect it, if you use a proxyIP, keep switchingIP, can break through the hour1000strip frequency limit, thus increasing efficiency.
Others want to switchIPOr proxies are also used in scenarios where identities are hiddenIPLike whatSEOWait.
AgencyIPThere are open proxies and private proxies, open proxies are scanned from the whole network, unstable, not suitable for crawlers, if you use them casually, it's fine. To catch data with crawlers, it is best to use a private proxy. There are many providers on the private proxy network, and the stability is uneven, and now our company uses the private proxy provided by "Yiniu Cloud". Our company has a project to capture Amazon data to analyze sales, reviews, etc., with itPHPPerform scraping, scrape Amazon with special attentionheaderhead, otherwise the output data is empty. We used other proxies beforeapimode, but manage it yourselfipThe pool finds it very troublesome, so I chose the crawler proxy provided by Yiniu Cloud, which is a dynamic forwarding mode and does not need to be managed by ourselvesippool, which is very convenient and saves a lot of time.
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Posted on 5/15/2019 5:05:08 PM
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